On Thu, Mar 3, 2016 at 11:16 AM, 'Checkmail' check_mail@... [firebird-support] <firebird-support@yahoogroups.com> wrote:

I’ve postet my problems with the new odbc driver and firebird 2.5 cs, the slow queries and all other issus. Now I have installed the firebird 3.0 rc2, the performance is great, superservers takes all cpu-cores and the problems now banned. I have not changed anything, is this a result of the superserver or the version 3 of firebird?

Both.  Firebird V3 introduces parallel execution of queries in SuperServer.  SuperServer was always multi-threaded but only one thread could run at any one time even on a multi-processor server.  The benefit of threading in earlier versions was that queries could be interleaved, so a long report didn't block all other requests.  With V3, thread do run in parallel taking advantage of all the processing power of a multi-core machine.

Glad things are working better for you!

Good luck,

Ann